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Parturitional factors associated with membrane stripping

S W McColgin1, W A Bennett, H Roach

  • 1Department of Obstetrics and Gynecology, University of Mississippi, Jackson.

American Journal of Obstetrics and Gynecology
|July 1, 1993
PubMed
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Membrane stripping, a procedure to initiate labor, increases uterine contractions. This method also elevates phospholipase A2 activity and prostaglandin F2 alpha, potentially triggering childbirth.

Area of Science:

  • Reproductive Biology
  • Obstetrics
  • Biochemistry

Background:

  • Membrane stripping is a common procedure to induce labor.
  • The biochemical and physiological changes following membrane stripping are not fully understood.

Purpose of the Study:

  • To investigate factors associated with clinical changes after digital separation of chorionic membranes (membrane stripping).
  • To compare these factors in patients undergoing membrane stripping versus those not treated.

Main Methods:

  • Thirty patients were randomized into a study group and two control groups.
  • Uterine contractions, microbiologic, histologic, and biochemical markers were assessed over 7 hours.

Main Results:

  • Membrane stripping significantly increased uterine contractile activity (p < 0.03).

Related Experiment Videos

  • Plasma 13,14-dihydro-15-keto-prostaglandin F2 alpha (p < 0.001) and endocervical phospholipase A2 activity (p < 0.04) were significantly elevated.
  • No significant changes were observed in leukocyte counts, sedimentation rates, prostaglandin E2 metabolites, or fibronectin levels.

    • Conclusions:

    • Membrane stripping is linked to increased phospholipase A2 activity and prostaglandin F2 alpha concentrations.
    • These biochemical changes suggest a potential role in initiating parturitional events.